<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>文件上传示例</title>
</head>
<body>
    <form method="post" action="upload_file.php" enctype="multipart/form-data">
        <label>选择文件:
            <input type="file" name="file1" />
        </label>
        <br/>
        <input type="submit" value="提交"/>
    </form>
</body>
</html>